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$648+ Cheap flights from Dulles Intl (IAD) to Adelaide (ADL)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/9. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — ADL
Apr 11 — Apr 181
Sat 4/11
Sat 4/18
1 adult, Economy
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Cheap flight deals from Dulles Intl to Adelaide

Cheapest flights from Dulles Intl to Adelaide
Explore the most affordable flight options available from Dulles Intl to Adelaide. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 12, 2026.

This FlightHub deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/44:05 pm
IAD
-
ADL
3 stops30h 15m
Air Canada
Mon 6/18:00 pm
ADL
-
IAD
2 stops47h 52m
Air Canada
Deal found 3/9$1,019
This Air Canada deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/44:05 pm
IAD
-
ADL
3 stops32h 20m
Multiple Airlines
Mon 6/15:15 pm
ADL
-
IAD
3 stops40h 44m
Multiple Airlines
Deal found 3/9$1,081
This BusinessClass deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/199:00 am
IAD
-
ADL
2 stops37h 20m
Singapore Airlines
Mon 4/278:00 pm
ADL
-
IAD
2 stops37h 59m
Singapore Airlines
Deal found 3/7$1,179
This Air Canada deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/199:00 am
IAD
-
ADL
3 stops37h 20m
Multiple Airlines
Wed 4/295:15 pm
ADL
-
IAD
3 stops40h 44m
Multiple Airlines
Deal found 3/9$1,213
This FlightHub deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/199:00 am
IAD
-
ADL
3 stops37h 20m
Air Canada
Wed 4/298:00 pm
ADL
-
IAD
3 stops37h 59m
Air Canada
Deal found 3/9$1,215
This Air Canada deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/228:20 am
IAD
-
ADL
3 stops38h 00m
Air Canada
Wed 4/294:30 pm
ADL
-
IAD
3 stops41h 29m
Air Canada
Deal found 3/9$1,252
This Air Canada deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/199:00 am
IAD
-
ADL
3 stops37h 20m
Air Canada
Sat 4/257:00 pm
ADL
-
IAD
3 stops39h 55m
Air Canada
Deal found 3/7$1,277
This Air Canada deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2112:40 pm
IAD
-
ADL
3 stops33h 05m
Multiple Airlines
Tue 4/285:15 pm
ADL
-
IAD
3 stops41h 40m
Multiple Airlines
Deal found 3/7$1,282

Find flight deals from Dulles Intl to Adelaide

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Adelaide (ADL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated March 12, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,019
(FlightHub)

One-way from

$648
(Kiwi.com)
Provider with most accurate pricing for Washington, D.C. (WAS)-Adelaide flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Adelaide flights.
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From Washington, D.C. Dulles Intl to Adelaide
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One-way flight from Washington, D.C. Dulles Intl to Adelaide
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl to Adelaide that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 12, 2026.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Adelaide that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Tue 4/14

5:55 pm-11:05 am

2 stops27h 40m

Adelaide

Wed 4/29

6:00 am-7:12 pm

2 stops26h 42m

$1,534

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Sat 4/18

10:10 pm-1:45 pm

2 stops50h 05m

Adelaide

Sat 5/2

4:30 pm-1:24 am

2 stops46h 24m

$1,548
Quickest round-trip

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Tue 4/21

5:55 pm-11:05 am

2 stops27h 40m

Adelaide

Thu 4/30

6:05 am-7:12 pm

2 stops26h 37m

$1,576

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Thu 4/23

2:36 pm-11:05 am

2 stops30h 59m

Adelaide

Mon 4/27

9:20 pm-8:46 pm

2 stops36h 56m

$1,579

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Sun 4/19

5:55 pm-11:10 am

2 stops27h 45m

Adelaide

Fri 5/1

6:05 am-8:58 pm

2 stops28h 23m

$1,579

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Thu 4/23

5:55 pm-11:05 am

2 stops27h 40m

Adelaide

Sun 5/3

6:05 am-7:12 pm

2 stops26h 37m

$1,626

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Thu 4/16

10:10 pm-11:05 am

2 stops47h 25m

Adelaide

Mon 4/27

6:40 am-7:12 pm

2 stops26h 02m

$2,410

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Wed 4/15

11:00 am-7:00 am

2 stops30h 30m

Adelaide

Fri 5/1

9:45 am-4:05 pm

2 stops43h 50m

$2,577

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Tue 4/21

10:55 am-8:05 pm

1 stop43h 40m

Adelaide

Tue 4/28

10:00 pm-8:40 am

1 stop48h 10m

$2,678

Washington, D.C.Adelaide

IAD - ADL

IADADL

Washington, D.C. Dulles Intl

Sun 4/19

10:55 am-8:05 pm

1 stop43h 40m

Adelaide

Fri 5/1

10:00 pm-8:40 am

1 stop48h 10m

$2,678

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/11

Showing 1-10 of 16 resultsSorted by cheapest first
1
2

Best time to book a flight from Dulles Intl to Adelaide

Have a flexible travel schedule? Discover the best time to fly to Adelaide from Dulles Intl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Reviews of airlines servicing Adelaide

Get insights into the airlines that provide service to Adelaide. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Adelaide. Reviews last updated March 12, 2026.
Peruse reviews from past customers who have flown with Qantas Airways from Washington, D.C. Dulles Intl Airport to Adelaide to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Qantas Airways
7.5
Good
1,004 reviews

Overall

7.5

Crew

8.1

Comfort

7.4

Food

7.0

Boarding

7.7

Entertainment

7.2

Reviews

1 / 20
2.0
Mediocre

Midhat,Feb 2026

WYA - ADL

Frequent delays, 3rd week in a row. Flight attendants not at all friendly.
Qantas Airways
7.5
Good
1,004 reviews
Qantas Airways
7.5
Good
1,004 reviews

Overall

7.5

Crew

8.1

Comfort

7.4

Food

7.0

Boarding

7.7

Entertainment

7.2

Reviews

1 / 20
2.0
Mediocre

Midhat,Feb 2026

WYA - ADL

Frequent delays, 3rd week in a row. Flight attendants not at all friendly.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Adelaide. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Adelaide from Washington, D.C. Dulles Intl?

    Located just 4.1 mi from the city center, Adelaide is the airport most travelers will use when flying to Adelaide from Washington, D.C. Dulles Intl. Booking flights from Washington, D.C. Dulles Intl to Adelaide (ADL) should be relatively easy as there are 0 daily inbound flights from Washington, D.C. Dulles Intl from 1 airline.

  • How long is the flight from Washington, D.C. Dulles Intl Airport to Adelaide?

    Departing from Washington, D.C. Dulles Intl Airport to Adelaide will take you 27h 40m. The distance between Washington, D.C. Dulles Intl Airport and Adelaide is about 10437 mi.

  • What is the cheapest airline to fly from Washington, D.C. Dulles Intl Airport to Adelaide round-trip?

    Flying on Qantas Airways is currently your cheapest option to Adelaide, with prices starting at $1,167.

  • Can I find deals for flights from Dulles Intl to Adelaide that include hotel bookings?

    Yes. In addition to deals on Dulles Intl to Adelaide flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Dulles Intl to Adelaide?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Adelaide.

  • Can I find deals for business class flights from Dulles Intl to Adelaide?

    Yes. Cheapflights offers flight deals from Dulles Intl to Adelaide by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near Adelaide?

Book flights to Adelaide if you plan to visit one of these locations
Glenelg

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Top airline flying from Dulles Intl to Adelaide

Discover the top airline that operate flights from Dulles Intl to Adelaide. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 12, 2026.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest$1,167Average$1,223FlexibilityNo cancel feeOn-time74%

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